major non-volatile fraction in red cedar dust; identified by inhalation challenge as allergen; RN given refers to (1S-(1 alpha,2 alpha,3 beta))-isomer
Also Known As:
plicatic acid, potassium salt; (1S-(1 alpha,2 alpha,3 beta))-1-(3,4-dihydroxy-5-methoxyphenyl)-1,2,3,4-tetrahydro-2,3,7-trihydroxy-3-(hydroxymethyl)-6-methoxy-2-naphthalene carboxylic acid